| // Copyright 2016 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef REMOTING_PROTOCOL_VIDEO_CHANNEL_STATE_OBSERVER_H_ |
| #define REMOTING_PROTOCOL_VIDEO_CHANNEL_STATE_OBSERVER_H_ |
| |
| #include "remoting/codec/webrtc_video_encoder.h" |
| #include "third_party/webrtc/api/video_codecs/video_encoder.h" |
| |
| namespace remoting { |
| namespace protocol { |
| |
| class VideoChannelStateObserver { |
| public: |
| virtual void OnKeyFrameRequested() = 0; |
| virtual void OnTargetBitrateChanged(int bitrate_kbps) = 0; |
| |
| // Called when the encoder has finished encoding a frame, and before it is |
| // passed to WebRTC's registered callback. |frame| may be null if encoding |
| // failed. |
| virtual void OnFrameEncoded( |
| WebrtcVideoEncoder::EncodeResult encode_result, |
| const WebrtcVideoEncoder::EncodedFrame* frame) = 0; |
| |
| // Called after the encoded frame is sent via the WebRTC registered callback. |
| // The result contains the frame ID assigned by WebRTC if successfully sent. |
| // This is only called if the encoder successfully returned a non-null |
| // frame. |result| is the result returned by the registered callback. |
| virtual void OnEncodedFrameSent( |
| webrtc::EncodedImageCallback::Result result, |
| const WebrtcVideoEncoder::EncodedFrame& frame) = 0; |
| |
| protected: |
| virtual ~VideoChannelStateObserver() = default; |
| }; |
| |
| } // namespace protocol |
| } // namespace remoting |
| |
| #endif // REMOTING_PROTOCOL_VIDEO_CHANNEL_STATE_OBSERVER_H_ |